CN107112811A - Magnetic field shielding piece and the wireless power transmission module including it - Google Patents
Magnetic field shielding piece and the wireless power transmission module including it Download PDFInfo
- Publication number
- CN107112811A CN107112811A CN201580072256.6A CN201580072256A CN107112811A CN 107112811 A CN107112811 A CN 107112811A CN 201580072256 A CN201580072256 A CN 201580072256A CN 107112811 A CN107112811 A CN 107112811A
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- Prior art keywords
- lamella
- magnetic field
- shielding piece
- small
- broken bits
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- 241000446313 Lamella Species 0.000 claims abstract description 134
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- 238000007254 oxidation reaction Methods 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000004615 ingredient Substances 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 28
- 229910045601 alloy Inorganic materials 0.000 claims description 18
- 239000000956 alloy Substances 0.000 claims description 18
- 229910000859 α-Fe Inorganic materials 0.000 claims description 16
- 239000013078 crystal Substances 0.000 claims description 13
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011347 resin Substances 0.000 claims description 11
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- 229920001971 elastomer Polymers 0.000 claims description 4
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- 239000005060 rubber Substances 0.000 claims description 4
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 229920000178 Acrylic resin Polymers 0.000 claims description 3
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
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- 239000004020 conductor Substances 0.000 description 1
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- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
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- 238000007598 dipping method Methods 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 239000000696 magnetic material Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0075—Magnetic shielding materials
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
-
- H02J7/025—
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
-
- H04B5/72—
-
- H04B5/79—
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/0088—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a plurality of shielding layers; combining different shielding material structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
- H01F2027/2809—Printed windings on stacked layers
Abstract
The present invention provides a kind of magnetic field shielding piece and the wireless power transmission module including it.Modular antenna unit according to the magnetic field shielding piece of the illustrative examples of the present invention applied at least two antennas in the magnetic field using mutually different frequency band, and including：First lamella, shields the magnetic field of first band and in magnetic field described in required direction focusing, and including metal ingredient；Second lamella, shields the magnetic field of second band and in magnetic field described in required direction focusing；And prevent that in small, broken bits departs from and oxidation part, is arranged on the side of first lamella, to prevent that the in small, broken bits side from first lamella from departing from or the side is oxidized.According to the present invention, prevent in small, broken bits disengaging and oxidation part from side can be prevented to be oxidized by being arranged on side, and can also prevent due to short-circuit caused by particle.
Description
Technical field
The present invention relates to a kind of magnetic field shielding piece, in more detail, it is related to magnetic field shielding piece and the wireless power including it is passed
Defeated module, it is characterised in that when shielding piece is formed by the magnet including metal ingredient, can prevent exposed to outside side
It is oxidized, and can prevents that in small, broken bits departs from from side.
Background technology
Recently, will be such as radio frequency identification (Radio Frequency Identification；RFID), near-field communication
(NFC), the various functions such as wireless charging (WPC) and interactive tablet personal computer are added to including the portable of mobile phone, tablet personal computer etc.
Formula terminal.
It, as one of radio frequency identification of electronic tag, is near using a kind of non-contact type of 13.56MHz frequency band that NFC, which is,
Field communication module, and be such as 10cm etc. closely in the technologies of data is transmitted between terminal.NFC is applied not only to mobile branch
Pay, and with file be widely used in supermarket or general shop transmission merchandise news or travel information for visitor,
Traffic, access control device etc..
Also, included recently in the smart mobile phone issued by Google " Android Beam " are a kind of based on closely
The closely information of communication (NFC) sends and receives function, not only realizes mobile payment, can also provide photo, business card, text
Part, map, website etc. pass to the function of another mobile phone from a mobile phone.
In addition, portable terminal has the wireless charging function for being used for that wireless charging to be carried out to internal battery.It is above-mentioned wireless
Charge from the wireless power receiving module that is built in portable terminal and for providing electricity to the wireless power receiving module
The wireless power transmission module of power is realized.
Recently, the NFC antennas for including being used for short-range communication are set in portable terminals such as such as smart mobile phones and be used for
Combined type (combined type) antenna element of WPC (or A4WP use) antennas of wireless charging is carried out to battery.
Above-mentioned compound antenna unit is applying a magnetic field, itself and adjacent portable terminal carry out short-range communication or
During performing wireless charging function for rechargeable battery, 100kHz is produced to tens MHz magnetic field.
So as in the wireless power transmission module using compound antenna unit, by the first magnetic sheet and the second magnetic sheet layer
It is folded to form magnetic field shielding piece, so as to meet the improvement of wireless near field communication performance and wireless charging performance simultaneously.
During above-mentioned magnetic field shielding piece is manufactured by punching operation after the first magnetic sheet of stacking and the second magnetic sheet, on
The punch side for stating magnetic field shielding piece is exposed.As described above, when using product in the state of punch side is exposed to outside, it is multiple
In small, broken bits, from punch side separation, causes circuit to occur short circuit.
On the other hand, at present, in order to test the reliability of such as portable terminal electronic product, strengthening as one kind
The salt fog spray testing of reliability test.
So as to, when using the magnet including metal ingredient for the shielding piece, when carrying out reliability test, due to
The infiltrations such as moisture and exposure are oxidized, so as to can not pass through reliability test.
The content of the invention
Problems to be solved by the invention
The present invention is to complete in view of the above problems, a kind of when shielding piece is by including metal ingredient its object is to provide
Magnet formation when, by prevent the exposure for shielding piece be oxidized or prevent in small, broken bits of metal ingredient from exposure disengaging come
The magnetic field shielding piece of the reliability of product and the wireless power transmission module including it can be improved.
The solution used to solve the problem
In order to achieve the above object, the present invention provides a kind of magnetic field shielding piece, applied to using mutually different frequency band
Magnetic field at least two antennas modular antenna unit, it is characterised in that including：First lamella, shielding first band
Magnetic field and in magnetic field described in required direction focusing, and including metal ingredient；Second lamella, shields the magnetic field of second band and in institute
Need magnetic field described in direction focusing；And prevent that in small, broken bits departs from and oxidation part, is arranged on the side of first lamella, to prevent
Only the in small, broken bits side from first lamella departs from or the side is oxidized.
Also, it is described to prevent that in small, broken bits departs from and aoxidize part for diaphragm or coating.
Moreover, first lamella can have and the second lamella identical size.Now, it is described to prevent that in small, broken bits takes off
Part I and Part II can be included from oxidation part, the Part I can cover the upper of first lamella
Face, the Part II can extend from the Part I and cover the side of first lamella.The Part II can
With to extend in the way of covering the side of second lamella.
In addition, first lamella can have the size smaller than the second lamella.Now, it is described to prevent in small, broken bits disengaging
Part I, Part II and Part III can be included with oxidation part, the Part I can cover described first
Above layer, the Part II can extend from the Part I and cover the side of first lamella, the described 3rd
Part can extend and cover a part for second lamella from the Part II.Above second lamella, delay
The periphery of the first lamella can be arranged in the way of surrounding first lamella by rushing layer, and the size of second lamella can be with
First lamella is identical with the total size of cushion.Wherein, the cushion can be made up of nonmagnetic body.
Also, the magnetic field of the first band can be used for transmitting wireless power, and the magnetic field of the second band can be used
In short-range communication, first lamella can accordingly be arranged with antenna with wireless power transmission, and second lamella can be with
Accordingly arranged with antenna with short-range communication.
Moreover, described prevent in small, broken bits disengaging and oxidation part from can include selected from wax, epoxy resin, melamine
At least one of resin, organic siliconresin, acrylic resin, EP rubbers resin (EPDM) and polyvinyl alcohol resin (PVA)
Macromolecule resin.
In addition, first lamella and second lamella can be made up of the magnet with mutually different magnetic conductivity.
Preferably, first lamella can be to include the banding piece of at least one of amorphous alloy and nanometer crystal alloy, described
Two lamellas can be ferrite sheet or polymer sheet.
Also, first lamella can be by by the banding including at least one of amorphous alloy and nanometer crystal alloy
Piece is laminated for multilayer and formed, and the ferrite sheet can be made up of Mn-Zn ferrites or Ni-Zn ferrites.
Moreover, at least one layer in first lamella and the second lamella or can separate for two layers and be formed as multiple in small, broken bits
Piece.
In addition, in the multiple in small, broken bits, part or all in adjacent in small, broken bits can be electrically insulated from each other, institute
The size for stating multiple in small, broken bits can be 1 μm~3mm, and the multiple in small, broken bits can be irregularly formed.
Also, it is described to prevent that in small, broken bits disengaging and oxidation part be attached using the adhesive including non-conductive composition as medium
.
On the other hand, the present invention provides a kind of wireless power transmission module, it is characterised in that including：Antenna element, including
Wireless power is transmitted with antenna and short-range communication antenna；And shielding piece, the one side of the antenna element is arranged in, shielding exists
Magnetic field that the antenna element is produced and in magnetic field described in required direction focusing.
Also, the antenna element may also include magnetic force safe transmission antenna.
Moreover, the gross thickness of the wireless power transmission module can be 0.15~0.6mm.
Now, the gross thickness of the wireless power transmission module can be 0.3mm.
On the other hand, present invention offer is a kind of includes the portable terminal of above-mentioned wireless power transmission module.
The effect of invention
According to the present invention, by set in the side for the lamella being externally exposed prevent in small, broken bits depart from and oxidation part come
Can prevent due to caused by air and/or contact with moisture aoxidize, and can prevent in small, broken bits from side separate, with prevent by
In the short circuit of the separated in small, broken bits internal circuit caused.
Brief description of the drawings
Fig. 1 is the sectional view for showing the magnetic field shielding piece according to one embodiment of the invention.
Fig. 2 a to Fig. 2 d are to show to prevent that in small, broken bits takes off applied to the magnetic field shielding piece according to one embodiment of the invention
From the accompanying drawing with the various modifications example of oxidation part.
Fig. 3 is the section for showing another form of the first lamella in the magnetic field shielding piece according to one embodiment of the invention
Figure.
Fig. 4 is the sectional view for schematically showing the wireless power transmission module according to one embodiment of the invention.
Fig. 5 is Fig. 4 separation figure.
Fig. 6 be schematically show by according to the wireless power transmission module application of one embodiment of the invention in portable terminal
The accompanying drawing of the state at end.
Embodiment
Hereinafter, embodiments of the present invention can be described in detail by refer to the attached drawing so that the present invention can be by ability
Field technique personnel easily implement.It should be understood, however, that the disclosure is not limited to these embodiments, and can be with a variety of
Embodied in other.Succinct for explanation, in the accompanying drawings, the part unrelated with description is omitted, and is passed through in full, identical
Reference numeral represents identical part.
First, reference picture 4 and Fig. 5, include antenna list according to the wireless power transmission module 100 of one embodiment of the invention
First 110, shield piece 120 and prevent that in small, broken bits departs from and oxidation part 130.
The antenna element 110 includes such as mobile phone, personal digital assistant (PDA), portable media playback equipment (PMP), flat
The portable electric appts such as plate computer and multimedia equipment and at least one antenna for being operated in predetermined frequency band.
Wherein, the antenna can only be set to circle, ellipse or the quadrangle flat board wound clockwise or counterclockwise
Type coil, but not limited to this, the antenna can form ring by with such as copper foil conductor at least one side of circuit board 112
The pattern of shape or the metal pattern for forming ring-type with electrically conductive ink on circuit board 112 are formed.
Now, when the antenna is formed on circuit board 112 with metal pattern, the metal pattern can be formed in electricity
The one or both sides of road plate.In addition, in the antenna element 110, the circuit of at least one antenna is formed with printed patterns
Plate 112 can be attached to it is described shielding piece 120 while.
Wherein, the circuit board 112 is as the base material for being formed thereon at least one antenna pattern and circuit portion
Component, be the material with heat resistance, resistance to pressure and flexibility (flexible).The physical property of above-mentioned material is considered, as described
Circuit board 112 can be used as thermosetting polymer film such as polyimides (PI) or polyethylene terephthalate
(PET) film such as.
On the other hand, the antenna element 110 can be set to one in the one side of the shielding piece 120, or can set
To be multiple, and it is fixed on by medium of tack coat the one side of the shielding piece 120.
Wherein, the tack coat can be the adhesive with cohesive, polyvinyl chloride (PVC), rubber or two-sided tape,
Conductive composition can also be included.
Antenna element 110 as described above could be arranged to the group being made up of the multiple antennas for being operated in mutually different frequency band
Composite antenna.
That is, as shown in figure 4, the antenna element 110 can include being operated in the antenna of first band and be operated in second
The antenna of frequency band.
As an example, the first band can be 100~350kHz or 6.78MHz, and the second band can be with
For 13.56MHz, the antenna for being operated in the first band can be wireless power transmission (wireless power
Transfer antenna 114c) is used, and the antenna 114a for being operated in the second band can be short-range communication (near field
Communication antenna) is used.
Wherein, the wireless power transmission is performed with antenna 114c and wirelessly passed using inductive mode or self-resonance method
The function for power of transmitting electricity, can play receiving coil (Rx coil), can also play transmission coil (Tx coil).
In addition, the wireless power transmission with antenna 114c can be for by inductive mode or self-resonance method come
The wireless charging antenna charged to the main battery of mobile device, can also utilize inductive side by sending or receiving
Formula or the wireless power of self-resonance method transmission are used as the feed of driving power supply with antenna or by electricity antenna.
Now, because the short-range communication with antenna 114a has frequency band than wireless power transmission antenna 114c more
High frequency band, and formed along the periphery of circuit board 112 with the electrical conductance patterns of the rectangle with fine rule width.Wireless power transmission
Needed to transmit electric power with antenna 114c, and using than the short-range communication lower frequency band of antenna 114a frequency band, therefore, near
Distance communication is with antenna 114a inner side to be formed than short-range communication with the broader wire spoke of antenna 114a wire spoke.
In addition, the antenna element 110 in the short-range communication with antenna 114a and wireless power transmission antenna
Region between 114c may also include magnetic force safe transmission (magnetic secure transmission, MST) and use antenna
114b。
The shielding piece 120 is formed by the tabular component with certain area, and a shielding is produced in the antenna element 110
Raw magnetic field and in the effect in magnetic field described in required direction focusing.
Now, the shielding piece 120 can accordingly include mutually not with being operated in multiple antennas of mutually different frequency band
The lamella 121,122 of same type, to improve the performance of associated antenna.
That is, described shielding piece 120 includes the first lamella 121 and the second lamella 122, and first lamella 121 shields described
The magnetic field of first band and in magnetic field described in required direction focusing, and the second lamella 122 shields the magnetic field of the second band simultaneously
In magnetic field described in required direction focusing.
Wherein, first lamella 121 is arranged in region corresponding with the antenna for being operated in the first band, and described
Second lamella 122 is arranged in region corresponding with the antenna for being operated in the second band.
Thus, first lamella 121 is used to improve the wireless power transmission for being operated in first band with antenna 114c's
Performance, for example, charge efficiency or power transmission efficiency are improved, and second lamella 122 is used for raising and is operated in the near of second band
Distance communication antenna 114a performance, for example, improving the efficiency of wireless identification.
Now, the lamella 122 of the first lamella 121 and second can have mutually different magnetic conductivity.As an example,
First lamella 121 can have 100~1000 magnetic conductivity, it is preferable that 900 magnetic conductivity.But, the first lamella 121
Magnetic conductivity not limited to this, can suitably be changed according to design condition.
As an example, first lamella 121 can use including in amorphous alloy and nanometer crystal alloy at least
A kind of banding piece, and second lamella 122 can use polymer sheet or ferrite sheet.
As described above, according to the present invention shielding piece 120 by by with mutually different magnetic conductivity multiple magnetic sheets layer
It is folded to form, and multiple magnetic sheets are accordingly arranged with associated antenna, so as to improve the performance of each antenna.
Wherein, the amorphous alloy and nanometer crystal alloy can use Fe systems or Co series magnetic alloys, it is contemplated that material
Cost, preferably uses Fe series magnetic alloys.In addition, the amorphous alloy and nanometer crystal alloy can include three element alloy or
Five elements alloy, for example, the three element alloy can include Fe, Si and B, and the five elements alloy can include Fe,
Si, B, Cu and Nb.
Moreover, the ferrite sheet can be made up of ferrite sintered body piece, can also be by Mn-Zn ferrites or Ni-Zn iron
Ferritic is made.Preferably, the ferrite sheet can be made up of Ni-Zn ferrite sintered body pieces.In addition, the polymer sheet can be with
The Magnaglo and resin for having high magnetic permeability by such as amorphous powdered alloy, soft magnetic bodies powder, Sang Hesi top grades are constituted.
Now, as shown in figure 1, first lamella 121 can have it is more relatively small than second lamella 122 arranged below
Size.
That is, described first lamella 121 has including being arranged in the wireless of the inner side of the short-range communication antenna 114a
The size in power transmission antenna 114c regions.So as to cover wireless power transmission antenna by first lamella 121
114c whole region, so as to effectively improve the performance of wireless power transmission antenna.
Further, since not arranged with the first lamella 121 of antenna 114c performance for improving the wireless power transmission
In straight top of the short-range communication with antenna 114a, it is thus possible to prevent first lamella 121 has influence on from closely leading to
Credit antenna 114a performance.
As an example, first lamella 121 has the inner side no more than short-range communication antenna 114a
The area in region.Say again, first lamella 121, which is set to have, includes the medial area of the short-range communication antenna 114a
Domain is without including proper area of the short-range communication with antenna 114a straight upper area.
Wherein, when antenna element 110 includes magnetic force safe transmission with antenna 114b, first lamella 121 can have
There is the size of the straight upper area including the magnetic force safe transmission antenna 114b, it is possible to have do not passed safely including magnetic force
The size of defeated use antenna 114b straight upper area.
On the other hand, when first lamella 121 has the size less than the second lamella 122 arranged below, delay
Rushing layer 136 can be arranged in the peripheral mode for surrounding first lamella 121.Now, first lamella 121 and cushion
136 total size can be identical (reference picture 2c) with the size of second lamella 122.
In addition, when cushion 136 in the way of surrounding the side of first lamella 121 when to arrange, the cushion 136
It can be made up of nonmagnetic body, can also be by so as not to the performance for the short-range communication antenna 114a for influenceing to be arranged in straight lower section
It is made with the identical material of the second lamella 122, to improve short-range communication antenna 114a performance.
And it is understood that for the ease of manufacture, first lamella 121 ' can also have and second lamella 122
Identical size (reference picture 2a and Fig. 2 b).
Wherein, mean that width and length in addition to thickness have identical numerical value with identical size, or remove
Radius outside thickness has identical numerical value, i.e. mean that opposed facing cross-sectional area is identical.
On the other hand, first lamella 121,121 ' can be in including multiple amorphous alloys and nanometer crystal alloy extremely
Banding piece 121a, 121b and 121c of a kind of few thin plate multilayer constitute (reference picture 3).
Wherein, when first lamella 121,121 ' is by being included at least one of amorphous alloy and nanometer crystal alloy
When the multilayer of the banding piece of thin plate is constituted, attachment 121d is between each banding piece, so that the banding piece one of multilayer
Body.
Now, the attachment 121d can include non-conductive composition, and the attachment 121d can be by binding agent
To be formed, and it can be formed by being coated with the one or both sides of the base material formed with form membrane in the form of binding agent
On the other hand, described for the performance that improves the wireless power transmission antenna for being operated in the first band
One lamella 121,121 ' can handle separation by film-making and be formed as multiple in small, broken bits, be reduced with will pass through raising overall electrical resistance
Generation vortex flow, in multiple in small, broken bits, part or all in adjacent in small, broken bits can be electrically insulated from each other, and each is in small, broken bits
Piece can be irregularly formed.Wherein, the size of described in small, broken bits can be 1 μm~3mm.
As an example, when first lamella 121,121 ' is set to include in amorphous alloy and nanometer crystal alloy
During the banding piece of at least one thin plate, the banding piece can carry out film-making processing after heat treatment and be formed as multiple thin to separate
Part or all in fragment, and adjacent in multiple in small, broken bits in small, broken bits can be electrically insulated from each other.Now, each is in small, broken bits
The size of piece can be 1 μm~3mm, and each in small, broken bits shape can be irregularly formed.
In addition, when first lamella 121,121 ' is formed as the multilayer structure of multiple banding pieces of multiple in small, broken bits by separation
Cheng Shi, each banding piece one chemical conversion multilayer by medium of the attachment.Now, the attachment can include non-lead
Electric composition.Thus, penetrated at least partially in the attachment in the gap of multiple in small, broken bits for constituting each banding piece,
So that adjacent in small, broken bits insulation completely or partially.
However, it is understood that first lamella 121,121 ' is not limited to the above-mentioned type, as long as have magnetic material,
Just all it can be used.
In addition, the second lamella 122 of the performance for improving the short-range communication antenna for being operated in the second band
Be formed as multiple small pieces also by film-making processing separation.As an example, when second lamella 122, to be set to fragility high
During ferrite sheet, the ferrite sheet separation is formed as multiple in small, broken bits, so as to improve the pliability of sheet material in itself, and can
So that because the characteristic variations of cracking and the sheet material separated in itself are minimized.
By preventing in small, broken bits disengaging and oxidation part 130,130 ', 130 ", 230 to be arranged on according to the present invention's by described
The exposure of magnetic field shielding piece is externally exposed at least partially in the exposure to prevent from shielding piece.
Especially, it is described to prevent that in small, broken bits departs from and oxidation part when shielding piece is formed by the magnet including metal ingredient
130th, 130 ', 130 ", 230 the side of the shielding piece equivalent to punch side is prevented to be exposed to outside, to prevent and air and/or water
The contact divided is oxidized, and also prevents that in small, broken bits of metal ingredient departs from from side, so as to improve the reliability of product.
As an example, when first lamella 121,121 ' is by such as including in amorphous alloy and nanometer crystal alloy extremely
When a kind of few banding piece generally comprises the magnet formation of metal ingredient, the side of first lamella 121,121 ' turns into system
The punch side formed during making by punching operation.So as to if in small, broken bits of such as banding piece metal ingredient from the punching
Emaciated face is from the sector-meeting in small, broken bits then departed from causes circuit to occur short circuit.
In the present invention, when first lamella 121,121 ' is by such as including in amorphous alloy and nanometer crystal alloy at least
During a kind of magnet formation of banding piece etc. including metal ingredient, prevent in small, broken bits depart from and oxidation part 130,130 ', 130 ",
230 are set in the way of surrounding the side equivalent to the first lamella 121,121 ' of punch side, so as to prevent in small, broken bits by described
Piece departs from and oxidation part 130,130 ', 130 ", 230 prevents in small, broken bits of metal ingredient from the first lamella as punch side
121st, 121 ' side departs from.
So as to even if first lamella 121,121 ' is by the band of such as at least one of amorphous alloy and nanometer crystal alloy
The material that shape piece generally comprises metal ingredient is made, be also prevented from small, broken bits of metal ingredient depart from from side and by with air
And/or the contact of moisture is oxidized, so as to improve the reliability of product, it is possible to prevent the metal by being departed from advance
In small, broken bits of composition and occur short circuit in circuit.
Wherein, at least one side of in small, broken bits disengaging and oxidation part 130,130 ', 130 ", 230 is prevented described in being coated on
Binding agent 134 can be to include the binding agent of non-conductive composition, so that the side from first lamella 121,121 ' is separated
In small, broken bits keep being adhered to the state of punch side.
Moreover, described prevent that in small, broken bits departs from and aoxidize the piece that part 130,130 ', 130 ", 230 can have diaphragm
Form, it is possible to have liquid or gel coat are applied to the side of the first lamella 121,121 ' by dipping, spraying, printing etc.
The form in face.
In addition, described prevent that in small, broken bits disengaging and oxidation part 130,130 ', 130 ", 230 from can be to include selected from wax, ring
Oxygen tree fat, melmac, organic siliconresin, acrylic resin, EP rubbers resin (EPDM) and polyvinyl alcohol resin
At least one of (PVA) macromolecule resin.
On the other hand, prevent that in small, broken bits departs from and aoxidize part 130,130 ', 130 ", 230 with diaphragm shape when described
During formula, the diaphragm can be used such as polyethylene terephthalate (PET) film, polypropylene (PP) film and poly- terephthaldehyde
Fluororesin films such as sour glycol ester (PTFE) film etc..
As described above, as depicted in figs. 1 and 2, it is described to prevent in small, broken bits disengaging and oxidation part 130,130 ', 130 " from including
The Part II 132 of the side of first lamella 121,121 ' is covered, moreover, for the convenience and cohesive of manufacturing process
Increase, may also include the Part I 131 covered above first lamella 121,121 '.
Also, it is as shown in Figure 2 d, described to prevent in small, broken bits disengaging and oxidation part 230 from only cover first lamella
121 side.
Now, when first lamella 121 has the size less than the second lamella 122, as shown in Fig. 1 and Fig. 2 c, prevent
Only in small, broken bits departs from and oxidation part 130 can include Part III 133, and the Part III 133 is from the Part II 132
Extend and cover above second lamella 122.
So as in the case where preventing in small, broken bits to depart from and oxidation part 130 having protection form membrane, when described 3rd
When points 133 Part II 132 from the side for covering first lamella 121 are extended to above second lamella 122, lead to
The bonding force of the diaphragm can be improved by crossing increase bond area.
In addition, when first lamella 121 has with the 122 identical size of the second lamella, as shown in Figure 2 b, institute
Stating prevents in small, broken bits disengaging and oxidation part 130 " from can extend from the Part II 132, to cover second lamella
122 side.
Now, the extension from the Part II 132 extension is in the way of covering below second lamella 122
Extension, the bonding force for preventing in small, broken bits disengaging and aoxidizing part 130 " can be improved will pass through increase bond area.
Also, it is described to prevent that in small, broken bits departs from and oxygen when cushion 136 is arranged in the sidepiece of first lamella 121
Change binding agent 134 described in the Part II 132 of part 130 and the two sided coatings of Part III 133 to enable the cushion 136
Enough fixed by binding agent.
It should be understood that, although prevent that in small, broken bits departs from and oxidation part described in illustrating and describing in the accompanying drawings and the description
130th, 130 ', 130 " side of the lamella 122 of the first lamella 121 and/or second and/or situation above, but this are arranged on
Invention is not limited to this, and can cover the side of the first lamella 121 and the second lamella 122 simultaneously.Moreover, it will be appreciated that
Will shielding piece 120,120 ', 120 ", 220 be applied to product during, it is described prevent in small, broken bits depart from and oxidation part 130,
130 ', 130 ", 230 can apply to all exposures exposed to outside shielding piece 120,120 ', 120 ", 220.
In addition, when the lamella 122 of the first lamella 121 and second is all formed by the magnet including metal ingredient, it is described
Prevent in small, broken bits to depart from and oxidation part 130,130 ', 130 " is preferably with while cover exposed to the outside He of the first lamella 121
The mode of the side of second lamella 122 is arranged (reference picture 2b).
On the other hand, do not arrange it is described prevent in small, broken bits depart from and oxidation part 130,130 ', 130 ", 230 it is described
Removable extra cover layer 140 can be included below second lamella 122.
Also, according to the requirement of compactization to electronic equipments such as such as portable terminals, the wireless power transmission
The integral thickness with 0.15~0.6mm can be made in module 100, it is possible to have 0.3mm thickness.
Wherein, even if the integral thickness exemplified with the wireless power transmission module 100 is 0.15~0.6mm, this should be by
The integral thickness for being interpreted as wireless power transmission module is relatively thin, the integral thickness without limiting wireless power transmission module.
On the other hand, although show that antenna element 110 is attached to the one side of the second lamella 122 in the shielding piece in figure,
But the invention is not restricted to this, the one side of the first lamella 121,121 ' can also be attached to.
As shown in fig. 6, can be set according to the wireless power transmission module 100 of one embodiment of the invention as described above
Back casing or the inner side of bonnet 92 in portable terminal 90, can also be arranged on and be incorporated into the extra outer of portable terminal
Shell.
As above embodiments of the invention are illustrated, but purport of the invention is not limited to the embodiment in the present invention,
Those skilled in the art, can be by easy to the additional of constitutive requirements, modification, deletion, increase etc. in identical main scope
Ground proposes other embodiments, and these belong to the main scope of the present invention.
Claims (25)
1. a kind of magnetic field shielding piece, the combined type day applied at least two antennas in the magnetic field using mutually different frequency band
Line unit, it is characterised in that including：
First lamella, shields the magnetic field of first band and in magnetic field described in required direction focusing, and including metal ingredient；
Second lamella, shields the magnetic field of second band and in magnetic field described in required direction focusing；And
Prevent that in small, broken bits departs from and oxidation part, is arranged on the side of first lamella, to prevent in small, broken bits from described the
The side of one lamella departs from or the side is oxidized.
2. magnetic field shielding piece according to claim 1, it is characterised in that described to prevent that in small, broken bits disengaging and oxidation part from being
Diaphragm.
3. magnetic field shielding piece according to claim 1, it is characterised in that first lamella has and second lamella
Identical size.
4. magnetic field shielding piece according to claim 3, it is characterised in that
It is described to prevent in small, broken bits to depart from and oxidation part includes Part I and Part II, Part I covering described the
Above one lamella, the Part II extends from the Part I and covers the side of first lamella.
5. magnetic field shielding piece according to claim 4, it is characterised in that the Part II is to cover second lamella
The mode of side extend.
6. magnetic field shielding piece according to claim 1, it is characterised in that first lamella has smaller than the second lamella
Size.
7. magnetic field shielding piece according to claim 6, it is characterised in that described to prevent that in small, broken bits departs from and oxidation part bag
Part I, Part II and Part III are included, the Part I is covered above first lamella, the Part II
Extend and cover the side of first lamella from the Part I, the Part III extends and covered from the Part II
Cover a part for second lamella.
8. magnetic field shielding piece according to claim 6, it is characterised in that
Above second lamella, cushion is arranged on the periphery of the first lamella in the way of surrounding first lamella,
The size of second lamella is identical with the total size of first lamella and cushion.
9. magnetic field shielding piece according to claim 8, it is characterised in that the cushion is made up of nonmagnetic body.
10. magnetic field shielding piece according to claim 6, it is characterised in that the magnetic field of the first band is used to transmit nothing
Line electric power, the magnetic field of the second band is used for short-range communication, and first lamella is corresponding with antenna with wireless power transmission
Ground arranges that second lamella is accordingly arranged with short-range communication with antenna.
11. magnetic field shielding piece according to claim 1, it is characterised in that described to prevent that in small, broken bits departs from and oxidation part
Include selected from wax, epoxy resin, melmac, organic siliconresin, acrylic resin, EP rubbers resin (EPDM)
And the macromolecule resin of at least one of polyvinyl alcohol resin (PVA).
12. magnetic field shielding piece according to claim 1, it is characterised in that first lamella and second lamella by
Magnet with mutually different magnetic conductivity is made.
13. magnetic field shielding piece according to claim 1, it is characterised in that first lamella is to include amorphous alloy
With the banding piece of at least one of nanometer crystal alloy, second lamella is ferrite sheet or polymer sheet.
14. magnetic field shielding piece according to claim 1, it is characterised in that first lamella is amorphous by that will include
The banding piece of at least one of alloy and nanometer crystal alloy is laminated for multilayer and formed.
15. magnetic field shielding piece according to claim 13, it is characterised in that the ferrite sheet by Mn-Zn ferrites or
Ni-Zn ferrites are made.
16. magnetic field shielding piece according to claim 1, it is characterised in that in first lamella and the second lamella extremely
Lack one layer or two separate is formed as multiple in small, broken bits.
17. magnetic field shielding piece according to claim 16, it is characterised in that in the multiple in small, broken bits, adjacent is thin
Part or all in fragment is electrically insulated from each other.
18. magnetic field shielding piece according to claim 16, it is characterised in that the size of the multiple in small, broken bits is 1 μm~
3mm。
19. magnetic field shielding piece according to claim 16, it is characterised in that the multiple in small, broken bits is irregularly formed.
20. magnetic field shielding piece according to claim 1, it is characterised in that described to prevent that in small, broken bits departs from and oxidation part
Adhere to by medium of the adhesive including non-conductive composition.
21. a kind of wireless power transmission module, it is characterised in that including：
Antenna element, including wireless power is transmitted with antenna and short-range communication antenna；And
Shielding piece according to any one of claim 1 to 20, is arranged in the one side of the antenna element, shields described
Antenna element produce magnetic field and in magnetic field described in required direction focusing.
22. wireless power transmission module according to claim 21, it is characterised in that the antenna element also includes magnetic force
Safe transmission antenna.
23. wireless power transmission module according to claim 21, it is characterised in that the wireless power transmission module
Gross thickness is 0.15~0.6mm.
24. wireless power transmission module according to claim 23, it is characterised in that the wireless power transmission module
Gross thickness is 0.3mm.
25. a kind of portable terminal, it is characterised in that including wireless power transmission module according to claim 21.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2015-0000572 | 2015-01-05 | ||
| KR20150000572 | 2015-01-05 | ||
| KR10-2015-0042149 | 2015-03-26 | ||
| KR1020150042149A KR101656260B1 (en) | 2015-01-05 | 2015-03-26 | Shielding unit for a wireless charging and wireless charging module having the same |
| PCT/KR2015/014391 WO2016111496A1 (en) | 2015-01-05 | 2015-12-29 | Magnetic field shielding sheet and wireless power transmitting module including same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107112811A true CN107112811A (en) | 2017-08-29 |
| CN107112811B CN107112811B (en) | 2020-05-01 |
Family
ID=56505643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580072256.6A Active CN107112811B (en) | 2015-01-05 | 2015-12-29 | Magnetic field shielding piece and wireless power transmission module comprising same |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US10477743B2 (en) |
| KR (1) | KR101656260B1 (en) |
| CN (1) | CN107112811B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418317A (en) * | 2018-02-08 | 2018-08-17 | 深圳顺络电子股份有限公司 | Wireless charging magnetic conductive board and preparation method thereof and wireless charging module |
| CN109712775A (en) * | 2019-01-30 | 2019-05-03 | 深圳市晶磁材料技术有限公司 | The preparation method of wireless charger magnetic conduction sheet |
| CN111095449A (en) * | 2017-09-18 | 2020-05-01 | 阿莫先恩电子电器有限公司 | Magnetic field shielding piece and wireless power transmission module comprising same |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11805631B2 (en) * | 2009-10-30 | 2023-10-31 | Amosense Co., Ltd. | Magnetic field shielding sheet for a wireless charger, method for manufacturing same, and receiving apparatus for a wireless charger using the sheet |
| KR101399023B1 (en) * | 2011-12-21 | 2014-05-27 | 주식회사 아모센스 | Magnetic Shielding Sheet for Wireless Power Charger, Manufacturing Method thereof, and Receiving Apparatus for Wireless Power Charger Using the Same |
| CN107844971B (en) | 2015-01-21 | 2019-04-19 | 三星电子株式会社 | Electronic equipment and the method for commerce for using electronic equipment |
| WO2016186443A1 (en) * | 2015-05-18 | 2016-11-24 | 주식회사 아모센스 | Combo antenna unit and wireless power receiving module comprising same |
| KR102405446B1 (en) | 2015-08-10 | 2022-06-08 | 삼성전자주식회사 | Antenna device and electronic device |
| US10381881B2 (en) * | 2017-09-06 | 2019-08-13 | Apple Inc. | Architecture of portable electronic devices with wireless charging receiver systems |
| US11426091B2 (en) | 2017-09-06 | 2022-08-30 | Apple Inc. | Film coatings as electrically conductive pathways |
| KR102175378B1 (en) * | 2018-03-13 | 2020-11-06 | 주식회사 아모센스 | Wide area type composite magnetic field Shielding sheet and wireless power transfer module including the same |
| KR102127710B1 (en) * | 2018-07-30 | 2020-06-29 | 문복룡 | Wireless LED lamp fixture for wireless power LED lamps and wireless LED lighting fixtures with wireless power LED lighting |
| US10727695B2 (en) * | 2018-09-11 | 2020-07-28 | Apple Inc. | Inductive charging module |
| EP3736839A1 (en) | 2019-05-06 | 2020-11-11 | AT & S Austria Technologie & Systemtechnik Aktiengesellschaft | Component carrier comprising embedded magnet stack |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100007215A1 (en) * | 2008-07-10 | 2010-01-14 | Nec Tokin Corporation | Soft magnetic sheet, module including the sheet and non-contact power transmission system including the module |
| JP2014036116A (en) * | 2012-08-08 | 2014-02-24 | Tdk Corp | Receiver for non-contact power supply |
| KR20140076778A (en) * | 2012-12-13 | 2014-06-23 | 엘지이노텍 주식회사 | Elastomer composition and magnetic ferrite coated with the same |
| KR20140101665A (en) * | 2012-01-09 | 2014-08-20 | 주식회사 케이더파워 | The reciving set for the wireless charging system |
| CN104011814A (en) * | 2011-12-21 | 2014-08-27 | 阿莫先恩电子电器有限公司 | Magnetic field shielding sheet for a wireless charger, method for manufacturing same, and receiving apparatus for a wireless charger using the sheet |
| WO2014137151A1 (en) * | 2013-03-05 | 2014-09-12 | 주식회사 아모센스 | Composite sheet for shielding magnetic field and electromagnetic wave, and antenna module comprising same |
| CN104054409A (en) * | 2012-02-03 | 2014-09-17 | 阿莫先恩电子电器有限公司 | Magnetic field shielding sheet for digitizer, manufacturing method thereof, and portable terminal device using same |
| JP2014183469A (en) * | 2013-03-19 | 2014-09-29 | Dexerials Corp | Antenna device and electronic equipment |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US183469A (en) * | 1876-10-17 | Improvement in tools for facing emery-wheels | ||
| US36116A (en) * | 1862-08-05 | Improvement in projectiles for rifled ordnance | ||
| JP2567096B2 (en) * | 1989-06-01 | 1996-12-25 | 日本電気アイシーマイコンシステム株式会社 | Power supply circuit |
| KR100853889B1 (en) * | 2005-07-29 | 2008-08-25 | 엘에스전선 주식회사 | Contact-less chargeable Battery and Charging Device, Battery Charging Set, and Method for Charging Control thereof |
| US7511502B2 (en) * | 2007-01-05 | 2009-03-31 | Kabushiki Kaisha Toshiba | Magnetic resonance imaging apparatus |
| US8482250B2 (en) * | 2010-08-06 | 2013-07-09 | Cynetic Designs Ltd. | Inductive transmission of power and data through ceramic armor panels |
| US20150326028A1 (en) * | 2011-09-21 | 2015-11-12 | Pioneer Corporation | Wireless power transmitting apparatus, wireless power receiving apparatus, and wireless power feeding system |
| KR101209979B1 (en) | 2011-10-24 | 2012-12-07 | 엘지이노텍 주식회사 | Apparatus for shielding and apparatus for transmissing wireless power |
| CN104040833B (en) * | 2012-01-12 | 2016-08-24 | 富士通株式会社 | Power transmission device and send by electricity system |
| EP2674950A1 (en) * | 2012-06-11 | 2013-12-18 | Tyco Electronics Nederland B.V. | Contactless connector, contactless connector system, and a manufacturing method for the contactless connector |
| US9444270B2 (en) * | 2012-08-02 | 2016-09-13 | Sandisk Technologies Llc | Wireless power transfer |
| US9362776B2 (en) * | 2012-11-27 | 2016-06-07 | Qualcomm Incorporated | Wireless charging systems and methods |
| JP2016010284A (en) * | 2014-06-26 | 2016-01-18 | 株式会社豊田自動織機 | Power transmission apparatus and non-contact power transmission device |
| WO2016111496A1 (en) | 2015-01-05 | 2016-07-14 | 주식회사 아모센스 | Magnetic field shielding sheet and wireless power transmitting module including same |
| US10090709B2 (en) * | 2015-03-23 | 2018-10-02 | Mitsubishi Electric Corporation | Bidirectional non-contact power supply device and bidirectional non-contact power supply system |
-
2015
- 2015-03-26 KR KR1020150042149A patent/KR101656260B1/en active IP Right Grant
- 2015-12-29 CN CN201580072256.6A patent/CN107112811B/en active Active
- 2015-12-29 US US15/541,463 patent/US10477743B2/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100007215A1 (en) * | 2008-07-10 | 2010-01-14 | Nec Tokin Corporation | Soft magnetic sheet, module including the sheet and non-contact power transmission system including the module |
| JP2010041906A (en) * | 2008-07-10 | 2010-02-18 | Nec Tokin Corp | Contactless power transmission apparatus, soft magnetic sheet, and module using the same |
| CN104011814A (en) * | 2011-12-21 | 2014-08-27 | 阿莫先恩电子电器有限公司 | Magnetic field shielding sheet for a wireless charger, method for manufacturing same, and receiving apparatus for a wireless charger using the sheet |
| KR20140101665A (en) * | 2012-01-09 | 2014-08-20 | 주식회사 케이더파워 | The reciving set for the wireless charging system |
| CN104054409A (en) * | 2012-02-03 | 2014-09-17 | 阿莫先恩电子电器有限公司 | Magnetic field shielding sheet for digitizer, manufacturing method thereof, and portable terminal device using same |
| JP2014036116A (en) * | 2012-08-08 | 2014-02-24 | Tdk Corp | Receiver for non-contact power supply |
| KR20140076778A (en) * | 2012-12-13 | 2014-06-23 | 엘지이노텍 주식회사 | Elastomer composition and magnetic ferrite coated with the same |
| WO2014137151A1 (en) * | 2013-03-05 | 2014-09-12 | 주식회사 아모센스 | Composite sheet for shielding magnetic field and electromagnetic wave, and antenna module comprising same |
| JP2014183469A (en) * | 2013-03-19 | 2014-09-29 | Dexerials Corp | Antenna device and electronic equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111095449A (en) * | 2017-09-18 | 2020-05-01 | 阿莫先恩电子电器有限公司 | Magnetic field shielding piece and wireless power transmission module comprising same |
| CN108418317A (en) * | 2018-02-08 | 2018-08-17 | 深圳顺络电子股份有限公司 | Wireless charging magnetic conductive board and preparation method thereof and wireless charging module |
| CN109712775A (en) * | 2019-01-30 | 2019-05-03 | 深圳市晶磁材料技术有限公司 | The preparation method of wireless charger magnetic conduction sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101656260B1 (en) | 2016-09-09 |
| KR20160084278A (en) | 2016-07-13 |
| US10477743B2 (en) | 2019-11-12 |
| US20180279517A1 (en) | 2018-09-27 |
| CN107112811B (en) | 2020-05-01 |
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